Enkido:
He was a wild-man, who was raised by animals and protected them from hunters. A trapper asks Gilgamesh for advice how to be rid of him and Gilgamesh advises him to bring a harlot to Enkidu. The harlot beds him and "corrupts" him. He turns to a life as a hunter.

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earching for a greater challenge, Enkidu is told of Gilgamesh. He seeks out Gilgamesh and they fight until Gilgamesh throws him down. Knowing that he had been bested, Enkidu praises him and they become friends.

Enkidu helps Gilgamesh defeat Humbaba, the guardian monster of the Forest of Cedars, which is home of the gods. He then helps Gilgamesh kill the Bull of Heaven, which had been sent by the gods as retribution. The gods decide to spare only Gilgamesh and Enkidu is judged to have interfered in the will of the gods. He is struck down by an illness. As death approaches, Enkidu curses the trapper and the harlot of civilizing him.

Gilgamesh:
Gilgamesh is a mighty king who is two-thirds god and one third man. He advises a trapper how to tame the wild man Enkido. Later, in search of a challenge, Enkido fights him. Gilgamesh bests him and they become friends. Enkido and Gilgamesh kill Humbaba, the guard monster of the home of the gods. The gods then sent the Bull of Heaven as retribution, but Enkidu and Gilgamesh kill that too. The gods judge that they must pay and Enkido is stricken with a disease.

Gilgamesh laments Enkido's death and then journeys to find Utnapishtim in an effort to reach immortality and thus Enkido's fate. He is given two tasks, both of which he fails. He returns home and is killed by a bull.

Humbaba:
Humbaba was a "monstrous giant" who guarded the Forest of Cedars, which was the home of the gods. Humbaba was defeated by Gilgamesh and Enkidu. Humbaba then pleaded for mercy, but Enkidu convinces Gilgamesh to kill Humbaba.